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<title>The clm vol manual</title>
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<p style="text-align:right">
16 May 2014&nbsp;&nbsp;&nbsp;
<a class="local" href="clmvol.ps"><b>clm vol</b></a>
14-137
</p>
<div class=" itemize " style="margin-top:1em; font-size:100%">
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">1.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#name">NAME</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">2.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#synopsis">SYNOPSIS</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">3.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#description">DESCRIPTION</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">4.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#author">AUTHOR</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">5.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#options">OPTIONS</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">6.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#seealso">SEE ALSO</a>
</div>
</div>

<a name="name"></a>
<h2>NAME</h2>
<p style="margin-bottom:0" class="asd_par">
clm_vol &mdash; compute volatile nodes from a set of clusterings</p>
<p style="margin-bottom:0" class="asd_par">clmvol is not in actual fact a program. This manual
page documents the behaviour and options of the clm program when
invoked in mode <i>vol</i>. The options <b>-h</b>, <b>--apropos</b>,
<b>--version</b>, <b>-set</b>, <b>--nop</b> are accessible
in all <b>clm</b> modes. They are described
in the <a class="local sibling" href="clm.html">clm</a> manual page.</p>

<a name="synopsis"></a>
<h2>SYNOPSIS</h2>
<p style="margin-bottom:0" class="asd_par">
<b>clm vol</b>
<a class="intern" href="#opt-fraction"><b>[-fraction</b> num (<i>nff factor</i>)<b>]</b></a>
<a class="intern" href="#opt-o"><b>[-o</b> fname (<i>output file</i>)<b>]</b></a>
&lt;cl file&gt;+
</p>

<a name="description"></a>
<h2>DESCRIPTION</h2>
<p style="margin-bottom:0" class="asd_par">
<b>clm vol</b> computes a score for each node, which at a minimum is equal to one.
The output is in the form of a matrix containing a single column. The score
correlates with what is deemed to be volatile behaviour. For all pairs of
clusterings the set of all intersections is computed, and these are
considered in turn.
An intersection is deemed to be volatile if the size of the intersection is
less than half the size of the smallest of the two clusters. In that case,
for each node in the intersection its volatility score is incremented by one
over the size of the intersection.
The size comparison can be made more stringent by increasing the
<b>-fraction</b>&nbsp;<i>&lt;frac&gt;</i> option, which is by default set to <tt>0.5</tt>.
Volatility occurs if the size of the intersection is less than
<b>&lt;frac&gt;</b> times the size of the smallest cluster. If the
<b>-fraction</b> value is increased all the way up to 1.0, the implication
is that an intersection is considered volatile unless one of the two
clusteres considered is a subset of the other.
</p>

<a name="author"></a>
<h2>AUTHOR</h2>
<p style="margin-bottom:0" class="asd_par">
Stijn van Dongen.
</p>

<a name="options"></a>
<h2>OPTIONS</h2>
<div class=" itemize " style="margin-top:1em; font-size:100%">
<div class=" item_cascade"><div class=" item_leftalign nowrap " ><a name="opt-fraction"></a><b>-fraction</b> num (<i>nff factor</i>)</div></div>
<div class=" item_text " style="margin-left:2em">
<p style="margin-top:0em; margin-bottom:0em">See the discussion at <a class="intern" href="#description">DESCRIPTION</a>.
</p>
</div>
<div style="margin-top:0em">&nbsp;</div><div class=" item_cascade"><div class=" item_leftalign nowrap " ><a name="opt-o"></a><b>-o</b> fname (<i>output file</i>)</div></div>
<div class=" item_text " style="margin-left:2em">
</div>
</div>

<a name="seealso"></a>
<h2>SEE ALSO</h2>
<p style="margin-bottom:0" class="asd_par">
<a class="local sibling" href="mclfamily.html">mclfamily</a> for an overview of all the documentation
and the utilities in the mcl family.
</p>
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mcl-doc 1:14-137-1 / usr / share / doc / mcl / html / clmvol.html
